Strangely, specifiying a audiobuffer worstened things in my case. I tried
settings from 0.05 to 1024 but as a result with both soundcards this yielded in series of clicks/drop outs.
Sorry, I forgot to mentionthat I fixed a bad bug in the "audiobufer" flag handing... I think it was broken in 0.23; download 0.23 "patch 2" from http://man104nfs.ucsd.edu/~mpuckett and try again; the results should be better.
-Miller